Questão jurídica principal
Whether the employee proved overtime sufficiently to allow estimation under Art. 42(2) CO
Decisão extraída
The employee proved, through witness testimony and surrounding circumstances, that overtime was performed and its extent could be estimated.
Fundamentação extraída
Where overtime is established but cannot be proven exactly, the court may estimate it under Art. 42(2) CO. The cantonal court did not merely rely on probability; it found the overtime manifestly shown by the evidence. Given the lack of time-recording system, testimony was an adequate means of proof.